Login.js - Creating a New Account - Javascript Chat App

login.js

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/**
 * register a new account - register with firebase and cometchat.
 * @param {*} object - user's information that will be used to register.
 */
function registerNewAccount({email, password, confirmPassword}) {
  if (validateNewAccount({email, password, confirmPassword})) {
    // show loading indicator.
    showLoading();
    // get user avatar.
    const userAvatar = generateAvatar();
    // create new user's uuid.
    const userUuid = uuid.v4(); 
    // call firebase and cometchat service to register a new account.
    auth.createUserWithEmailAndPassword(email, password).then((userCrendentials) => {
      if (userCrendentials) {
        // call firebase real time database to insert a new user.
        realTimeDb.ref(`users/${userUuid}`).set({
          id: userUuid,
          email,
          avatar: userAvatar
        }).then(() => {
          alert(`${userCrendentials.user.email} was created successfully! Please sign in with your created account`);
          // call cometchat service to register a new account.
          const user = new CometChatWidget.CometChat.User(userUuid);
          user.setName(email);
          user.setAvatar(userAvatar);
          CometChatWidget.init({
            "appID": `${config.CometChatAppId}`,
            "appRegion": `${config.CometChatRegion}`,
            "authKey": `${config.CometChatAuthKey}`
          }).then(response => {
            CometChatWidget.createOrUpdateUser(user).then(user => {
              hideLoading();
            } ,error => {
              hideLoading();
            });
            hideSignUp();
          }, error => {
            //Check the reason for error and take appropriate action.
          });
        });
      }
    }).catch((error) => {
      hideLoading();
      alert(`Cannot create your account, ${email} might be existed, please try again!`);
    }); 
  }
}
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